Surface-modified nanodiamonds and method for producing surface-modified nano carbon particles
US-2026028231-A1 · Jan 29, 2026 · US
by chromatography data, e.g. HPLC, gas chromatography
by chromatography data, e.g. HPLC, gas chromatography · Cooperative Patent Classification (CPC)
Chemical and metallurgical processes, compounds, and materials.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | C01P2002/87 |
| Official title | by chromatography data, e.g. HPLC, gas chromatography |
| Display label | by chromatography data, e.g. HPLC, gas chromatography |
| Total patents | 46 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 7 |
| 2016 | 4 |
| 2017 | 7 |
| 2018 | 5 |
| 2019 | 3 |
| 2020 | 3 |
| 2021 | 2 |
| 2022 | 4 |
| 2023 | 2 |
| 2024 | 4 |
| 2025 | 4 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Surface-modified nanodiamonds and method for producing surface-modified nano carbon particles
US-12479731-B2 · Nov 25, 2025 · US
Surface-modified nanodiamonds and method for producing surface-modified nano carbon particles
US-12441619-B2 · Oct 14, 2025 · US
Method for producing carbon nanotubes
US-2025074774-A1 · Mar 6, 2025 · US
Process
US-2025062431-A1 · Feb 20, 2025 · US
Void defect forming method, device, and diamond manufacturing method
US-2024410083-A1 · Dec 12, 2024 · US
Zirconium-based cluster as a dentin tubule occlusion agent
US-12012338-B2 · Jun 18, 2024 · US
Surface-modified nanodiamonds and method for producing surface-modified nano carbon particles
US-2024116762-A1 · Apr 11, 2024 · US
Zirconium-based cluster as an antiperspirant and deodorant active
US-11918667-B2 · Mar 5, 2024 · US
Solid electrolyte, solid electrolyte solution, and method of manufacturing solid electrolyte
US-2023231184-A1 · Jul 20, 2023 · US
Iron oxide powder for brake friction material
US-11572926-B2 · Feb 7, 2023 · US
Process for the preparation of precipitated silicas, precipitated silicas and their uses, in particular for the reinforcement of polymers
US-11407881-B2 · Aug 9, 2022 · US
Iron oxide powder for brake friction material
US-11359689-B2 · Jun 14, 2022 · US
Surface-modified nanodiamonds and method for producing surface-modified nano carbon particles
US-2022177314-A1 · Jun 9, 2022 · US
Iron oxide powder for brake friction material
US-2022163082-A1 · May 26, 2022 · US
Positive electrode active material for nonaqueous electrolyte secondary battery, method for producing same, and nonaqueous electrolyte secondary battery using said positive electrode active material
US-11171326-B2 · Nov 9, 2021 · US
Zirconium-Based Cluster as an Antiperspirant and Deodorant Active
US-2021069074-A1 · Mar 11, 2021 · US
Ammonia detection material and detector
US-2020309751-A1 · Oct 1, 2020 · US
Positive electrode active material for nonaqueous electrolyte secondary battery, method for producing same, and nonaqueous electrolyte secondary battery using said positive electrode active material
US-10784507-B2 · Sep 22, 2020 · US
Iron oxide powder for brake friction material
US-2020003268-A1 · Jan 2, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C01P2002/87?
- CPC C01P2002/87 is the Cooperative Patent Classification code for “by chromatography data, e.g. HPLC, gas chromatography.”
- How many patents are filed under CPC C01P2002/87 (by chromatography data, e.g. HPLC, gas chromatography)?
- Our database includes 46 publications tagged with this CPC code.
- Is patent activity under CPC C01P2002/87 growing?
- Publication counts under this code: 4 in 2024 vs 4 in 2025 (latest complete years).